How are you. My name is Omar and my brother owns a mine in Pakistan that we believe has a large deposit of jade, we are not sure though, but it seems to pass all the test, you see it passed the coolness test to the cheek and it makes a special sound when it is smashed with another jade, and when I scratch it there only seems to be a surface mark.
In my country we don’t know nothing about jade, but whatever this rock is we have a vast amount of it and can easily supply 10 tons a month. I don’t know your email address but would it be possible to contact me so that I can send you pictures of the different stones we have that I believe is jade. Thank you.
Omar, United Kingdom
I have mentioned a few preliminary test for Jadeite Jade in my past previous posts in these links :
One has to be cautious when using these tests to ascertain whether a rough mineral is Jadeite Jade or some other mineral. These are all quick and dirty test used when you are in the field with no gemological instruments other than your loupe, a quartz crystal or a tweezers. These are negation and exclusion tests. It eliminates other possibilities but you have to use other affirmative and key test to determine the actual mineral.
If a mineral does not pass through these tests, then it is definitely not Jadeite Jade. But if it passes through these tests, one also cannot confirm that the raw mineral is Jadeite Jade.
By the pictures you sent me, I would think that they belong to the mineral group called Serpentine. It has a hardness ranging from 2.5 to 6, a Refractive Index of 1.56 – 1.57 and a specific gravity of 2.57 (plus or minus 0.2). Serpentine is also greasy like when polished. Individual minute crystals of serpentine may be translucent but as a mass they are semi-translucent or opaque.
Other trade names of Serpentine are Bowenite, found in abundance in the USA and in Korea where they called in Korean Jade. Serpentine is also found in abundance in the world.
Only a small portion of Serpentine are used as jewelry because of its abundance. Most Serpentine are used for carvings in China.
Since you have some small slabs I suggest you send one of these to a school or a science lab to have it tested for specific gravity. SG test is very simple and any high school students will be able to do it. If you obtain an SG of around 2.56 then your mineral is Serpentine.
So far there are no deposits of Jadeite Jade found in Pakistan. Perhaps in future deposits of Jadeite Jade may be found as Pakistan has a lot of minerals too.
Thank you for your interest and good luck to you, Omar
A Arthur Lau